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Geekpedia » Tech News » The future battery is urine

The future battery is urine

On Monday, May 28th 2007 at 01:12 PM

By Andrew Pociu (View Profile)

NEC Flexible Battery

What do urine, sugar and bacteria have in common? They all can be turned into an eco-friendly battery.

A major drawback in gadgets today comes from the batteries: even after years of development, they are still short-lasting, expensive and require hours to recharge. Furthermore, they are not biodegradable. However, recent breakthroughs in battery research show major innovations. One of these is using urine, with which researchers have built a credit card-size battery as a disposable power source.

A piece of paper soaked in copper chloride and sandwiched between magnesium and copper to which you add a drop of urine, produces a chemical reaction that produces the same power as an AA battery.

The battery on the left side is developed by NEC, codenamed ORB (Organic Radical Battery), and it doesn't use urine but a structure similar to Li-Ion batteries, meaning it could easily be integrated into current cellphones and laptops. It charges to its full capacity within 30 seconds.

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